Colonization of the West

The Left seems determined to allow Islam and the Third World to colonize the West. What is their end game? Why are they doing this? Do they want Islam to win…or are the Muslims a force of chaos that the Left wants to use to start some kind of civil war in the West…so that the Left can can some kind of leverage and takeover completely in the aftermath of the war that Islam causes? Is it a Cloward-Piven strategy?

* 11/23/16 = Flooding America with Muslim colonists is part of strategy to conquer the West, according to Al Qaeda.